BIO120H1 Lecture Notes - Lecture 11: Carbon Fixation, Global Warming, Outcrossing

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30 Oct 2016
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BIO120H1 Full Course Notes
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BIO120H1 Full Course Notes
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Bio120h1 f - lecture 11 - contemporary evolution and invasive species. British took this plant to india, where the indians used it for hedging - since it is slightly spiny, it forces castles to follow a certain path that the herder sets. Tigers breed in a specific type of woodland, and avoid humans during breeding season, particularly when mating. Tourism industry realized that elephants and tigers respected each other, so people riding elephants is the best way to see tigers. Elephants using same path every day means that it clears a path, which lantana takes advantage of to grow in. Chemicals in lantana camara acts as anti-aphrodisiac due to smell, so tigers don"t mate, leave woodlands, raises encounter rates with humans, leads to increased amount of attacks on humans. Complex chain of events: accidental introduction by colonizers > use by locals > escape into wild. > leads to lack of tiger reproduction > humans killed.